have you checked with a flashlight to see if there is anything showing on the screen. Just to make sure that this is not a backlight issue. Since you already replaced the power board, the next prime suspect would be the main board. Check the voltages on your connectors and let us know what you find. I would check BL_EN on CN3 and the voltages on CN4 etc. Here are some of the schematics and voltages that you could check
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have you checked with a flashlight to see if there is anything showing on the screen. Just to make sure that this is not a backlight issue. Since you already replaced the power board, the next prime suspect would be the main board. Check the voltages on your connectors and let us know what you find. I would start by checking the voltage of pin 1-3 on CN1. After that check BL_EN on CN3 and the voltages on CN4 etc. Here are some of the schematics and voltages that you could check
'''++@philsam++'''
have you checked with a flashlight to see if there is anything showing on the screen. Just to make sure that this is not a backlight issue. Since you already replaced the power board, the next prime suspect would be the main board. Check the voltages on your connectors and let us know what you find. I would check BL_EN on CN3 and the voltages on CN4 etc. Here are some of the schematics and voltages that you could check
[image|1614914]
[image|1614916]
[image|1614915]
[image|1614917]
[image|1614918]
[image|1614912]
[image|1614913]
[image|1614911]